Fetal Development at 10 Weeks Pregnant

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By 10 weeks pregnant, you may be trying to get used to the idea that you are pregnant, or you could be celebrating with family and friends. Although you aren’t showing yet, you can certainly feel the changes taking place within your body. Your baby is growing and developing very rapidly, preparing for its birth in just 30 weeks.


Fetal Period Begins

Week 10 marks the end of the embryonic period and the beginning of the fetal period. During the embryonic period, critical development of the embryo takes place, and it is most susceptible to congenital malformations during this time. In the fetal period, the fetus is less likely to develop any malformations, yet it is wise to stay away from recreational drugs, radiation and severe stress.

Length and Weight

By the 10th week of pregnancy, your baby’s crown to rump length is 1.25 to 1.68 inches long, which is about the size of a lime. The baby weighs approximately 5 grams.

Large Head

At this stage of development, your baby’s head makes up most of its length, as the head is the largest part of the baby. According to the American Pregnancy Association, there is a bulge in the baby’s forehead that allows for brain development. The baby’s eyelids are now closed and will protect the eyes during the rest of development.

Organ Development

The vital organs such as the kidneys and liver are developed and functioning, but they will continue to mature throughout the rest of the pregnancy. The baby is also able to swallow amniotic fluid and move its limbs.

Movement

Although the baby is able to move its limbs and body, you may not be able to feel its movement for a few weeks. When you do, it may feel like a quick fluttering moving across your stomach, and it happens randomly at first. The baby’s heartbeat could potentially be heard using a fetal Doppler at this point.

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